High-efficiency AgInS₂-Modified ZnO nanotube array photoelectrodes for all-solid-state hybrid solar cells

TY - JOUR

T1 - High-efficiency AgInS2-Modified ZnO nanotube array photoelectrodes for all-solid-state hybrid solar cells

AU - Han, Jianhua

AU - Liu, Zhifeng

AU - Guo, Keying

AU - Ya, Jing

AU - Zhao, Yufeng

AU - Zhang, Xueqi

AU - Hong, Tiantian

AU - Liu, Junqi

N1 - Publisher Copyright: © 2014 American Chemical Society.

PY - 2014/10/8

Y1 - 2014/10/8

N2 - Highly ordered AgInS2-modified ZnO nanoarrays were fabricated via a low-cost hydrothermal chemical method, and their application as all-solid-state solar cells was also tested. A sensitizer and a buffer layer were developed around the surface of ZnO nanotubes in the preparation process, and this method is easily be manipulated to produce uniform structure. In this structure, the ZnO served as direct electron transport path, the ZnS as the buffer layer, and the ternary sensitizer AgInS2 as absorber and outer shell. The novel all-solid-state hybrid solar cells (ITO/ZnO/ZnS/AgInS2/P3HT/Pt) showed improved short-circuit current density (Jsc) of 7.5 mA/cm2, open-circuit voltage (Voc) of 512 mV, giving rise to a power conversion efficiency of 2.11%, which is the relatively highest value ever reported for ZnO-based all-solid-state hybrid solar cells. This better result is attributed to the improved absorption spectrum, high speed of photoinduced charge transmission velocity, and appropriate gradient energy gap structure, which implies a promising application in all-solid-state solar cells.

AB - Highly ordered AgInS2-modified ZnO nanoarrays were fabricated via a low-cost hydrothermal chemical method, and their application as all-solid-state solar cells was also tested. A sensitizer and a buffer layer were developed around the surface of ZnO nanotubes in the preparation process, and this method is easily be manipulated to produce uniform structure. In this structure, the ZnO served as direct electron transport path, the ZnS as the buffer layer, and the ternary sensitizer AgInS2 as absorber and outer shell. The novel all-solid-state hybrid solar cells (ITO/ZnO/ZnS/AgInS2/P3HT/Pt) showed improved short-circuit current density (Jsc) of 7.5 mA/cm2, open-circuit voltage (Voc) of 512 mV, giving rise to a power conversion efficiency of 2.11%, which is the relatively highest value ever reported for ZnO-based all-solid-state hybrid solar cells. This better result is attributed to the improved absorption spectrum, high speed of photoinduced charge transmission velocity, and appropriate gradient energy gap structure, which implies a promising application in all-solid-state solar cells.

KW - AgInS

KW - all-solid-state

KW - buffer layer

KW - highly ordered

KW - solar cell

UR - http://www.scopus.com/inward/record.url?scp=84907886734&partnerID=8YFLogxK

U2 - 10.1021/am5047813

DO - 10.1021/am5047813

M3 - 文章

AN - SCOPUS:84907886734

SN - 1944-8244

VL - 6

SP - 17119

EP - 17125

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

IS - 19

ER -